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Beta XTrainer

The MXT46 shock for the Beta XTrainer

The MXT46 is a complete replacement shock for the Beta XTrainer, machined by MXTech to All Moto Performance's specs for the XTrainer specifically. It is $1,800, built to suit you with the right spring for your weight, and it is the best shock money can buy under $2,500.

It fits every XTrainer, Lowboy included. It completely replaces the stock shock, so there is no need to send yours in.

What it is

A lot of shock for $1,800

At $1,800 valved and sprung for you, it's a bargain. You get a beefy 18mm DLC coated shaft, a 46mm Kashima coated body, billet construction and separate low, mid and high speed compression and rebound adjusters, machined by MXTech to AMP's specs for the XTrainer and built to suit you with the appropriate spring.

This is for riders looking to achieve capabilities beyond what the stock design can offer. It is head and heels above any revalved production shock, including the KYB equipped Race Editions.

MXT46 against the stock XTrainer shock

Feature MXT46 Stock XTrainer
Shaft 18mm, DLC coated 16mm
Body 46mm, Kashima coated aluminum 40mm, steel
Main piston Billet aluminum, with a serviceable, o-ring backed, PTFE lined piston band Powdered metal, with a molded on Teflon band
Floating piston Hybrid membrane Double o-ring, solid aluminum
Adjusters Low speed compression, mid speed compression, high speed compression and rebound Single compression and single rebound

Want to go all out? The National is available

MXTech's National shock ($2,900) is their premium offering and the best shock money can buy. It adds the huck valve bottoming circuit the MXT46 leaves out. Like the MXT46, it can be built with AMP's valving specs to suit each individual rider.

The MXTech National shock

From MXTech

  • 62mm reservoir and the latest shock top design
  • 4 points of adjustment, light and low friction
  • Kashima coating done in Japan, DLC hard coatings where appropriate
  • The mechanical preload adjuster is available for it too
An AMP MXT46 shock fitted to a Beta XTrainer, with its low, mid and high speed compression and rebound adjusters on the reservoir
MXT46 on an XTrainer

Option

Mechanical preload adjuster, +$300

MXTech's mechanical preload adjuster is available for the MXT46 for an additional $300, which brings the shock to $2,100. It is also available to purchase separately.

  • Unique functional and aesthetic design
  • Easily configurable for different spring lengths and chassis placements
  • Low profile, low mass design
  • Titanium driven pins and mounting hardware
  • Allows for quick sag adjustment and chassis setups
  • Laser etched for easy 0.50mm preload increments
Order with the preload adjuster
The MXTech mechanical preload adjuster fitted to a Kashima coated shock body
  • The preload adjuster drive, marked plus and minus with arrows
  • Laser etching on the adjuster ring reading .5mm of preload
  • The titanium drive pin and clamp on the preload adjuster
  • The machined adjuster body, etched MX-Tech Pro Suspension

The full build

Pair it with the XT Lucky cartridge

The MXT46 out back with the XT Lucky cartridge and a fork spring up front is the most capable setup on the XTrainer page. Whole bike, springs for your weight included, $2,905. Every cartridge installed here is valved and tailored to suit the rider.

Lucky and MXT46, $2,905
I thought there would be an improvement, but not this drastic... it did not deflect on bumps a single bit. after riding a while I realized, the rear tire never left the ground unless I wanted to... I actually found myself riding a gear higher and faster on the same trails I normally ride.
Van G. 2024 Beta XTrainer, MXT shock ยท March 2026

Want one on your XTrainer?

Send the rider form with your weight in gear, your terrain and how you ride, and pick the MXT46 in the package list. Aaron writes back, usually by email.

Prefer paper? Grab the rider info PDF instead. Or call (406) 351-1633 and leave a voicemail. Email is preferred.